Hipower 9 Cell Laptop Battery For Toshiba Satellite L355-S7811, L355-S7812, L355-S7817, L355-S7822, L355-S7827, L355-S7828, L355-S7831, L355-S78312, L355-S7834, L355-S7835, L355-S7837, L355-S7900, L355-S7902, L355-S79023, L355-S7905, L355-S7907, L355-S7915 Laptop Notebook Computers Cells: 9 Cells Voltage Rating: 10.8V Capacity Rating: 6600mAh; 71Wh Product Type: This item is an extended capacity 9 cell battery. This battery is physically larger than batteries with fewer cells and may stick out from your computer when installed. Please compare the ratings to determine if this battery is different from your current battery. Size: 8.17in X 2.89in X 0.81in (207mm X 74mm X 21mm)